Community Ecology

Community Ecology

By Tiffany Randolph

Multiple Choice

Starfish are probably the most important predator in the shallow ecosystem because they eat basically anything that they can come across. Their feeding activities control the whole ecosystem. This is an example of the starfish ___.

• habitat
• biotic factors
• tolerance level
• niche

Multiple Choice

Tree kangaroos live in the upper branches of trees in the rainforests of Queensland, as well as on the island of New Guinea. This is an example of the tree kangaroos ___.

• niche
• habitat
• community
• population

Multiple Choice

Several species of warblers can live in the same spruce tree ONLY because they

• have different habitats within the tree.
• don’t eat food from the tree.
• occupy different niches within the tree.
• can find different temperatures within the tree.

Multiple Choice

When two species of cattails are grown together, they grow at different water depths and coexist.  When grown alone, they grow at similar water depths.  Which of the following is best demonstrated by the data?

• natural selection
• character displacement
• resource partitioning
• ecological succession

Multiple Choice

A human & a Tape Worm: The tape worm gets a place to live in the intestines of the human and food from the human. The human loses weight and nutrients from the tape worm.

• Mutualism
• Commensalism
• Parasitism

Multiple Choice

Bird & Tree: A bird builds a nest in a hole in the trunk of the tree. It is protected from the rain and predators. The tree is not harmed or helped by the bird.

• Mutualism
• Commensalism
• Parasitism

Multiple Choice

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Multiple Choice

Tree kangaroos live in the upper branches of trees in the rainforests of Queensland, as well as on the island of New Guinea. This is an example of the tree kangaroos ___.

• niche
• habitat
• community
• population

Multiple Choice

What is the name of an animal that is hunted and eaten by other animals?

• producer
• prey
• predator
• decomposer

Multiple Choice

The concept that predators can affect the size and distribution of other animals is known as 

• predation
• herbivory
• tolerance
• limitation

Multiple Choice

Groups of different populations that live in a given area and interact are called a(n)...

• Community

• Colony

• Population

• Ecosystem

Multiple Choice

What is the term for each step in the transfer of energy and matter within a biological community?

• energy path
• food web
• trophic level
• food pyramid

Multiple Choice

Rabbits and deer eat lettuce leaves from a garden.
^{What ecological interaction describes the relationship between rabbits and deer?}

• Mutualism
• Competition
• Commensalism
• Predation

Multiple Choice

Which statement best describes the relationship between species A and B?

• Species A is the prey of Species B

• Species A is a parasite of Species B

• Species A is a consumer and B is a producer

• Species A and B has a mutualistic relationship

Multiple Choice

Many poisonous animals are brightly colored (red or orange) as a warning to predators.  The special coloration is called

• Mullerian mimicry
• Batesian mimicry
• aposematic coloration 
• mutualistic coloration

Multiple Choice

Which of the following represents several species of brightly colored, harmless snakes looking like poisonous coral snakes?

• commensalism
• mutualism
• batesian mimicry
• mullerian mimicry

Multiple Choice

Which of the following represents several species of poisonous snakes bearing bright colors of red, black, and yellow?

• commensalism
• mutualism
• batesian mimicry
• mullerian mimicry

Multiple Choice

A key stone species is...

• the top carnivore.
• has the largest population.
• has the most specialized niche.
• determines numbers and types of other species.

Multiple Choice

Primary succession is... 

• When a hurricane causes a river to flood its banks
• When a farmer ploughs his fields to remove all existing plant life.
• When fire burns through a forest and ills all vegetation less than 1m tall.
• When increasing temperature causes a glacier to recede from an area of rocky ground

Multiple Choice

Primary succession is... 

• When a hurricane causes a river to flood its banks
• When a farmer ploughs his fields to remove all existing plant life.
• When fire burns through a forest and ills all vegetation less than 1m tall.
• When increasing temperature causes a glacier to recede from an area of rocky ground

Multiple Choice

The secondary succession is 

• lichens and mosses arrive on bare rock and begin to trap soil
• a complex, stable ecosystem is formed
• plants grow in an area devastated by a flood
• plants grow in a newly formed pond

Multiple Choice

What is the order of succession shown in this figure?

• A, B, C, D
• B, A, D, C
• C, D, A, B
• D, A, B, C

Multiple Choice

What type of succession is shown going from figure A to figure B?

• primary succession
• ecological succession
• secondary succession
• intermediate

Multiple Choice

What is the name given to lichen or algae after a primary succession?

• pioneer species
• volunteer species
• founder species
• conqueror species

Multiple Choice

What is the difference between a primary vs. secondary succession?

• secondary occurs where there was no previous community
• they are the same
• secondary occurs in an area that was only partially destroyed
• primary ocurs in an area that was only partially destroyed

Multiple Choice

What is the correct order from oldest (happened first) to youngest (happened last) in this pond succession?

• A, B, C, D
• D, C, B, A
• B, A, D, C
• C, D, A, B